100-300 Days to maturity. Coreopsis lanceolata. Lanceleaf Coreopsis Seeds. Non-GMO, Perennial. Lanceleaf Coreopsis flowers are perennial wildflowers with solitary yellow daisy-like flowers blooming on long stalks from May to August. It is recommended for roadside plantings, wildflower mixtures, or waste areas. Very hardy and persistent. The uniquely shaped petals appear torn and add a unique texture to the traditional single daisy-shaped bloom. Approximately 12,000 seeds/oz.